Incubator.



WlTNEs-sEL-s J. H. KATE.

INCUBATOR.

APPLICATION FILED JUNE 5. 19:5.

Patented Mar. 20, 1917'.

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JOHN H. KATE J. H. KATE.

INCUBATOR.

APPLICATION FILED 1UNE 5. 1915.

Patented Mar. 20, 1917.

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JOHN H: KA TC.

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JOHN H. KATE OF DES MOINES, IOWA, ASSIGNOB 6F ONE-HALE TO E. J. RAYMOND,OF DES MOINES, IGVVA.

INGUBATOR.

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Application filed June 5, 1915.

thereby making it possibleto employ horizontal egg trays. In allincubators of this class it has heretofore been necessary toemploy atray inclined from the sides toward the center, and this, to someextent, had the effect of producing a fairly even heat to all the eggs,although, it is obvious, the eggs would press toward the center of thetray and this causes no little inconvenience. In my invention it hasbeen mypurpose to eliminate this great inconvenience and at the sametime assure a much greater degree of accuracy in uniformly heating theeggs on the tray.

My invention consists of certain details of construction, hereinafterset forth, .pointed out in my claims, and illustrated in theaccompanying drawings, in which Figure I shows a perspective'view of mydevice, the cover being in raised position; v c

' Fig. II shows a detail view partially in section, of a part of thecentral heating plant I employ;

and

Fig. IV shows a detail view partiallyin section, of a modified form ofapart of the heating plant I employ. y

Referring to the accompanying drawing, the reference numeral 10 is usedto indi cate the body of the incubator and the numeral 11, the coverwhich is hinged thereto. Below the body of the incubator I have securedan oil retainer 12, provided with a lamp 13 which is located immediatelybeneath the center of the incubator. The said lamp is provided with ametal chimney 14:, which extends upwardly a slight distance through thebase of the hotly portion of the inenhater. numeral 113 indicates aSpecification of 'Letters Patent.

Patented Mar. 20, 1917.

Serial No. 32,320.

metal drum, having two walls,- parallel and spaced apart, said drumbeing secured in the base of the body portion of the inciibator andextending upwardly therefrom on a slightly inwardly tapering incline.The numeral 16 indicates a hollow distributing head which is centrallysecured in the cover 11, and is designed to fit over the inner wall ofthe open end of the drum 15, when the cover is in closed position withrelation to the body of'the incubator. The head 16 is provided with fourhollow pipes, 17 radiating therefrom, one extending to each corner ofthe cover where it is connected with an orifice which leads outwardlythrough the cover.

The drum 15 is surrounded by a second drum 18, provided with verticalsides and with an open top, said drum also being provided with lugs 19,placed on a horizontal plane surrounding said drum and designed toreceive an egg tray 20, said egg tray being provided with an orifice oran opening, designed to fit over the said drum 18. Said drum 18 is alsoprovided with a plurality of orifices 21, located beneath the line ofthe egg tray 20 and designed to permit air to enter the base of the drumfor purposes hereinafter set forth.

Surrounding the drum 18, I have provided a circular water receptacle 22,its lower end being designed to rest upon the tray 20, and its upper endbeing open, as shown. Surrounding said water receptacle is a drum 23,also resting upon the egg tray 20, said drum being provided with aplurality of orifices 24, formed by a semi-circular cut in the drum, theportion of the drum inside said out being turned inwardly so as to formlugs 25, designed to engage the outer su face of the water-receptacle22, thereby spacing the drum 23 uniformly around the water-receptacle22. The numeral 26 indicates a drum, open at its base, surrounding antray which is supported by the body 10, the central portion of the trayresting upon the lugs 19. The lugs 19 are on a horizontal plane with thesecuring means for the frame of the tray, and the said tray ishorizontal on its upper surface.

In practical operation the heat from the lamp 13 passes upwardly throughthe metal chimney 14L into the drum 15. The drum 15 being heated,radiates heat outwardly to the drum 18 and also heats thewater-receptacle 22. The direct heat from the lamp passes outwardly tothe center of the t'ay through these drums, and the exhaust heat passesthrough the head 16 and the pipes 17 and their respective orifices inthe cover, to the outer air.

If this system of heating were all that could be provided for theincubator, it would be necessary to have the egg tray dipped toward thecenter, for the reason that the heat would not be uniform and all of theeggs would not be heated to a like degree. it has always been necessaryin centrally heated in cubators to incline the trays in this manner sothat some degree of uniformity could be secured for the heating of theeggs. in my invention T have provided an auxiliary heat which I deliverto the four corners of the incubator, thus providing five differentpoints for the heat, and a uniformity of heat is secured thereby. Theauxiliary heat consists of the heat in the drum 18 passing upwardlythrough the drums 26 and the pipes 27 to the four outlets, ashereinbefore set forth.

The object of using the water receptacle 22 is to provide a moist heatand this moist heat is also divided so that the same is deliveredcentrally and also to the four corners of the incubator. The moist heatis circulated in the following manner; the drum 26 extends downwardlyinto the water receptacle 22, the end of the drum 26 entering the water.This completely seals and divides the water-receptacle and the moistheat inside of the drum 26 passes upwardly and outwardly through thedelivery pipes 27 and is delivered into the four corners of theincubator.

The moist heat outside of the drum 26 rises upwardly and is deliveredthrough the top of the water receptacle 22, thereby providing a centraldelivery fr. a portion of the moist heat.

It is necessary to have the openings 21 provided in the manner shown, inorder to secure a perfect circulation of the heat, and while I do notdesire to be limited to a device of this character, having saidopenings, yet I do desire to claim it in this way.

In the modified form shown in Fig. IV, I do not use thewater-receptacle, but I simply divide the indirect heat from the lampwithout regard to any moisture that might be desired to be mixedtherewith.

Otherwise the modified form is in exact conformity to the maininvention.

Having thus described my invention, what I claim and desire to secure byLetters Patent of the United States, is:

1. In an incubator, a body having an egg chamber and a cover therefor,an air drum arranged in the egg chamber open at its top, a second drumconcentrically arranged about the first drum, a chimney extendingupwardly through and above the first drum, a head carried by the coverfor removably seating over the chimney, conducting pipes connected withthe head, and a heat distributing drum encircling the head and ar rangedon the cover to enter between the concentric drums of the egg chamber.

2. An incubator comprising a body portion and a cover hinged thereon; ahorizontal egg tray; a lamp mounted below the body of the incubator andextending upwardly theretln'ough; a metal chimney on said lamp extendingthrough the orifice in the egg tray and nearly to the inner surface ofthe cover; a drum surrounding said lamp chimney, said drum being open atits upper end, a second drum also open at its upper end, surrounding theaforesaid drum; a water receptacle open at its upper end surroundingsaid second drum, said water receptacle resting on the egg tray; ahollow head engaging the top of the chimney and pipes running from thesaid hollow head to the four corners of the incubator and orificestherein to permit the heat and fumes to be expelled through the cover ofthe incubator; a drum, open at its lower end, secured to the top of theincubator and surrounding the aforesaid hollow head, the open lower endof the said drum entering into the circular water receptacle; pipesextending from said drum, one pipe surrounding each of the pipesconnected to the aforesaid hollow head, said pipes extending to the fourcorners of the incubator and being open at their ends, substantially asshown and described.

3. An incubator comprising a body portion and a cover hinged thereon; ahorizontal egg tray; a lamp mounted below the body of the incubator andextending upwardly therethrough; a metal chimney on said lamp extendingthrough the orifice in the egg tray and nearly to the inner surface ofthe cover; a drum surrounding said lamp chimney, said drum being open atits upper end and a second drum also open at its upper end surroundingthe aforesaid drum, said drum being provided with orifices at a pointbelow the egg tray; a circular water receptacle; a third drumsurrounding the said water-receptacle and also resting on the egg tray;a hollow head engaging the top of the chimney and pipes running fromsaid hollow head to the four corners of the incubator and orificestherein to permit the heat and fumes to be expelled through the cover ofthe incubator; a drum, open at its lower end, secured to the top of theincubator and surrounding the aforesaid hollow head, the open lower 1end of the said drum entering into the circular water receptacle; pipesextending from said drum, one pipe surrounding each of the pipesconnected to the aforesaid hollow head, said pipes extending to the fourcorners of the incubator, and being open at their ends, substantially asshown and described.

4. An incubator comprising a body por- 7 tion and a cover hingedthereto; a horizontal egg tray; lamp mounted below the body of theincubator and extending upwardly therethrough; a metal chimney on saidlamp extending through the orifice in the egg tray and nearly to theinner surface of the cover; a drum surrounding said lamp chimney, saiddrum being open at its upper end, and a Copies of this patent may beobtained for five cents each, by addressing the Washington, D. G.

open at its lower end secured to the top of the incubator, andsurrounding the aforesaid hollow head, pipes extending from said drum,one pipe surrounding each of the pipes connected to the aforesaid hollowhead, said pipes extending to the four corners of the incubator andbeing open at their ends, substantially as shown and described.

5. In an incubator, an egg chamber, a chimney disposed verticallytherein, a radial series of conducting pipes connected with the chimneyand opening exterior of the chamber, an annular chamber surrounding thechimney, a. second series of pipes, and a drum having communication withthe latter and depending into the annular chamber for dividing the same.

6. In an incubator, an egg chamber having a hinged cover, an upwardlyopening annular water chamber disposed in the egg chamber and a drumcarried by the cover and open at its lower end to be received b thewater chamber for dividing the latter, said drum being provided withradial passages opening into the egg chamber.

JOHN H. KATE. Witnesses:

ZELL G. Ron, F.-MOENCK.

Commissioner of Patents,

